Sip voip app mobileのお仕事：

I require to develop VOIP (voice over internet application) on preferably android platform, but windows OS is acceptable. Project is not meant to be done from scratch and I expect freelancer to be adept at utilizing already available open source projects to drastically cut development costs and time only modifying already existing solutions to my needs. Original VOIP application can be taken from ...

We need someone who can write an application to be used via the voice control of Alexa (Amazon)
The voice control needs to listen to s certain request and execute it then
and this can then send in a sip instruction to a telephone switch to be answered by an operator.

I have my own DIDs bought them from a site has only one option to forward the incoming calls and SMS to SIP URI. I need you to setup Asterisk and configure it to receive the incoming SMS and to get these SMS's through an API via my website so i can check them via my site.

Develop Click to call plugins that will turn phone numbers on web pages into clickable links
If you do this well, i will give you lot of work.
We need a plugin for Web, Outlook (plugin identifies the number phone on the website using the tel: ; callto protocol) which will work on the principle of
1. Clicking on the number selects the SIP account I have programmed on my IP phone, softphone, ...

i need a Android apps it have to connected with my sip server using wifi/3g
when my sip server send a call to android device it have to pass the call using mobile gsm sip card
my Android phone work like a VOIP gateway
you can use any codec
if you can make it please bid
|previous i have some bad experience|
i m not going to release any fund without test

Voice and SMS Telecom Engineer
Career level
Senior (5-10 years)
Greencall Mangement, a romanian telecom company is seeking a telecom engineer with good knowledge of VoIP and SMS interconnections. One of the main responsibilities will be to interconnect new voice and sms partners and manage these interconnections at a technical level.
The candidate will be required to install, configure, troub...

Looking for a freelancer from China (no companies, please) that can create a mobile app that connects to our DB, scans QR and barcode and help the user to search through shelves the part that he/she needs to repair.
We have a partnership with a mobile and laptops service. They check for a detail on their shelves.
So app is going to have as an input a JSON export link from our server with a lis...

I want to build my personal SIP server. I have deployed raspbx image and followed the instructions on [URLが削除済みです、ログインして表示してください]@ety001/use-the-raspberry-pi-to-build-an-asterisk-service-to-receive-calls
All NAT settings handled but I can not connect.

Please if you are not have full idea what i say dont make offer
i have voip gateways connected by VPN called VIBE
i have firewall on vibe server to block all SIP calls not from my voip server but i still recive calls on my Gateway i need one who can find how i can stop this unauthorized calls

I am looking for a Delphi developer,who is very good in developing SIP software /dialer for this project.
Developer should have the deep understanding about SIP protocol.
This dialer should have some special features like.
*Multiple SIP lines from different providers
* Dial to a single number using all providers at the same time
* Deliver the status of the lines via a small API
* Au...

Hello,
I have several Cisco phones. All of which are SCCP and I need to convert them to SIP. I have a local TFTP server setup, but need the correct firmware files dropped into my server. This could be done by sending me the correct files and Teamviewer.
The models I have are as follows: 7965, 7940, and 7960. I will pay for each model Cisco phone that's successfully flashed.

We reserved sip account to use with [URLが削除済みです、ログインして表示してください] script
it will auto register and keep registered always
any one click that wil start good telephone comunication on any multimedia device
this will be compatable to PC, Android,IOS original browsers as well as chrome and firefox and/or mozilla